BIOLOGICAL RHYTHMS

Biological Rhythms
Biological Rhythms - One of the fundamental properties of living systems, man.

They carry out an essential function of coordination organismic phenomena and their synchronization with the rhythms of the environment, adapt to changes in the environment, and represents an intrinsic property of living matter as one of its dialectical contradictions at all levels of the organization, without exception, and in all the processes generated by it.

Compliance with periodic processes in living systems, the human body is not an exception to periodic processes of the environment reflects a causal relationship from the first second.

The human body, in accordance with his needs and the main purpose of high-quality long productive life synchronize its processes with the rhythms of the environment.

Under physiological conditions apply physiological rhythms. Pathological conditions - it more serious.

On the one hand - this is a violation of physiological biorhythms, or, even more often, adjustment of physiological rhythms under pathological process to ensure the best possible resolution of her (my principle of optimality of the disease).

On the other hand - this is the appearance of additional rhythms due to abnormal conditions. The simplest example, a chronic disease with the cycles of the cyclic exacerbation-remission.

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biological rythms

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A2 exercise on biological rythms

The whole set of chrono OR BIORHYTHMS

Chrono or the totality of biorhythms
Chrono - Invention F. Hallberg - Derived from chronos (time) and nomos (rule).

As gene includes the entire set of genes of the human body, chrono includes the totality of his biorhythms.

The centerpiece of the circadian rhythms is combining rhythms of subcellular, cellular, tissue, organ and system processes into a single coordinated temporal structure.

Some typical characteristics of healthy human circadian periodicals - weight peaks at 18-19, heart rate - in the 15-16 arterial pressure - 15-18, body temperature - 18 hours. The amplitude of circadian oscillations in healthy young adults for the temperature of the body is 3%, pulse rate - 30% -25% of blood pressure. She, however, is subject to a large extent influenced by social factors (depression, stress different nature, etc.).

C. Pittendrih and S. Dahan (1976) showed that the stability of circadian rhythm to external shocks is greater than it is closer to 24 hours, and its deviation from this standard is not favorable to the person.

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Breitling Chrono Avenger M1 E73360 B73 SuperQuartz COSC Chronometer 45MM Titanium 1000M

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For auction is a Breitling Chrono Avenger M1 E73360 B73 SuperQuartz COSC Chronometer 45MM Titanium 1000M with full set. A fairly rare watch with the yellow dial and anthracite black subdials it is an awesome rugged chrono diver....one of the best quartz chrono diver's ever made in fact. B73 SuperQuartz movement is amazing and offers up everything that could be needed in a timepiece. Dial is really great looking with the applied stencial black arabic numerals and the antracite subdials. Comes mounted on a candy bar style Breitling rubber strap and tang. A truly nice chrono diver.

ASTRONOMICAL CLOCK

Astronomical Clock Today, there are three main astronomical system of time measurement:

- Earth's rotation on its axis - universal time UT

- of the Earth around the Sun - ephemeris time ET

- emission (absorption) of electromagnetic waves atoms or molecules of certain substances under certain conditions - the atomic time AT.

On Earth, using universal time is referred to as Greenwich Mean Time. It is a mean solar time to zero (Greenwich) meridian and as the basis of standard time. The mean solar time is set according to the observations of the stars, but not for the sun, and on the angular position of the Earth on its axis, regardless of the speed of its rotation. Ephemeris time is used in celestial mechanics, the study of the motion of celestial bodies.

Atomic time is used in cases demands an extremely accurate measurement of time intervals. Since the speed of rotation of the Earth around its axis is variable, universal time is not strictly uniformly against the ephemeris or atomic time.

The unit used in the daily practice of mean solar time is the mean solar day, which consists of 24 high sunshine hours. One mean solar hour consists of 60 minutes of mean solar, and one high solar minute - 60 of the mean solar seconds. It is assumed that the day starts at midnight.

Local time at a particular point on the Earth depends on its longitude. When moving to the west of the prime meridian, it lags behind the world for 1 hour every 15 degrees of longitude. Not to enter the local time for each degree, and put 24 time zones. When moving from one time zone to another for the minutes and seconds (time) are stored, and the hours vary.

In the North and South Poles meridians converge at one point, and the concept of time zones loses its meaning. Taken so that the poles are presented in the worldwide.

The speed of rotation of the Earth characterized by seasonal fluctuations, and therefore universal time is lagging behind, then ahead of the ephemeral. During the year, these deviations can reach 30 ms.

The amendments introduced in Universal Time Bih (Paris).

Control is performed over time using the clock. The most ancient are the water and the hourglass. The exact definition of time was made possible with the invention of the pendulum clock.

Since the 50s of the last century have given way to a pendulum clock with quartz and atomic clocks.

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The Astronomical Clock of Prague

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Each hour a huge crowd gathers to watch this clock trot out its lively cast of characters - including death, avarice and vanity! For more: http://www.gypsynester.com/pc.htm
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